=== Begin For Triaster Support ===The following content may be useful to the Triaster support team.Please copy and paste it into an e-mail to support@triaster.co.ukand attach any referenced files if you would like help understandinghow to avoid this issue reoccurring.Object reference not set to an instance of an object.Failure exporting C:\Triaster\Map Store\ProcessLibrary\2 Maps for Review\MyMap.vdx to html.

Note the information emphasised. It's this information that's pertinent to the scenarios described.

Possible Cause 1:

Visio doesn't have a key applied, or may not be activated. It's prompting for user action, and is unresponsive to automation commands. If it's running non-interactively, such as in an automated publication, this prompt won't be visible.

Workaround:

Ensure Visio has a valid key and is activated.

Possible Cause 2:

Visio has been configured to run as a specific user, but that user account is different from that which is running Process Navigator, from which Visio is launched.

Scenarios could be:

An automated publication, where the Visio user and the Publication user (i.e. the user that runs the 'PN Publication Wrapper' service) aren't the same.

Exporting to HTML from an interactive session of Process Navigator, being run under a different user account from the Visio user.

Workaround:

Ensure that Visio is being run under the same account as Process Navigator. See this article for details: